Add test cases for white/blacklist endpoint including listen path (#3447)
Add test cases for white/blacklist endpoint including listen path (#3447)

The issue described in https://tyktech.atlassian.net/browse/TT-437 is not valid. To handle that situation `$` can be used.
This PR adds that test case.
lonelycode/tyk,lonelycode/tyk,lonelycode/tyk